Support for fire-alarm and police signal boxes



SUPPORT FOR FIRE ALARM AND POLICE SIGNAL BOXES Filed MarCh 31, 1927 W/l/l am H. GTEE'Yl/CIW Invenfur Patented Aug. 28, 1928.

" UNITED STATES WILLIAM H. GREENLAW, OF BEVERLY, MASSACHUSETTS.

SUPPORT FOR FIRE-ALARM AND POLICE SIGNAL BOXES.

Application filed March 31, 1927. Serial No. 179,959.

My invention relates to supports for fire alarm and police signal boxes.

It has for its object to provide a secure anchoragc or foundation for the box; to minimize mutilation and irreparable damage to the structure or poles on which such boxes are mounted; to eliminate side sway; to afford improved provision for the installation of an insulating joint; to provide an improved adjustable means by which my device is made adaptable for use on poles of varying sizes; to provide an improved cumulative anchorage support the various units of which render it adaptable for convenient use on either a pole, corner or flat surface like e. g. the side of a building; to avoid the use of wood mountings or other quickly deteriorating materials; to eliminate the use of wood screws in anchoring the supported device; and to provide the various other advantages and results made evident from the following specification.

I accomplish the objects of my invention as illustrated in the accompanying drawings which form a part of this specification and in which Figure 1 shows my assembled hanger positioned on a post, on which in its cumulated form it is adaptable for use. Figure 2 shows a side view of the hanger positioned as in Figure 1 and, having a fire alarm box mounted thereon. Figure 3 shows my hanger with the adjustable side arms removed, in this form adaptable for use as a foundation on flat surfaces. Figure 4 shows a top view of my cumulated device.

Referring again to the drawings, it will be seen that the cumulated hanger comprises the upright A, the cross piece B, and adjustable angle arms C and D. The near terminals of the upright A are off-set at E, and E so as to bring the extreme ends thereof out of, but parallel with, the line of its intermediate part F. This off-set feature affords provi sion for the installation of the insulating joint G shown in Figure 2 without necessity of mutilating the pole or structure. The cross piece B is also off-set at H and H so as to bring its center portion I out of, but parallel with, the line of its adjoining ends J and K. The upright A and the cross member B are joined at their centers preferably by the screw bolts L and L counter sunk on the upright A and threaded into the cross piece B. This construction insures a fiat foundation and convenient knockdown fea .tures for shipping but may be varied at will to meet requirements.

The cumulated hanger is secured to the post M by the lag screws N, N N and N passing through orifices placed for this purpose. The adjustable angle arms 0 and 0 are provided with an elongated slot 0 (see Figure 3) adaptable to receive the counter sunk screw bolts P and P which after passing through said slots are secured by nuts of suitable size and strength. The width of the hanger is varied to fit the pole onwhich it is mounted by sliding the elongated slots along the bolts P and P to their desired position. in the hanger register with other holes in the box or apparatus to be mounted and are adaptable to receive the counter sunk screws R, R R and R, which first pass through the holes in the box and then engage the threads in the holes Q, Q Q and Q". In this manner a steady and solid foundation is secured.

Similar letters of reference refer to similar parts throughout the various views.

I do not desire to confine myself to the specific details of construction herein set forth, but claim all such variations and equivalents as may be construed to fall within the scope of the appended claims.

Having thus described my invention 1 claim as new and desire to secure by Letters Patent of the United States of America:

1. A device of the kind described, comprising an upright member, having its terminals offset so as to bring its extreme ends out of, but parallel with, the line of its intermediate portion, a cross member having its center offset so as to bring said center out of but parallel with the line of its adjoining ends, means for joining the two at substantially 90, and means for securing thereon a signal box or other equipment, said upright and cross members adaptable at their ends to be secured against a support.

2. A device of the kind described, comprising an upright member, having its terminals The threaded holes Q, Q3, Q and Q,

2 i I v 1,682,613

off-set so as to bring its extreme ends out of, at the ends of said cross member, and means but parallel with, the line of its intermediate for securing on said cross and upright memport10n,a cross member having its center oflfbers a signal box or other equipment, said I" set so as to bring said center out of but parupright and angled members adaptable at allel with the line of its adjoining ends, their ends to be secured againstasupport.

means for joining the two at substantially In testimony whereof I afiix my signature. 90, angledextension arms slidably mounted WILLIAM H. GREENLAW. 

